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# an object thrown vertically up from the ground passes the height 5 m twice in an interval of 10 s. what is its time of flight?

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### Mohammed

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## An object thrown vertically up from the ground passes the height 5m twice in an interval of 10 sec. What is the timeof flight ? Pls explain with diagram sir

The object passes height 5 m twice in an interval of 10 sec . So it took 5 s for reaching heighest point of flight. velocity at 5 m height is 0= v- gt 0=v-10*5 v=50 so speed at start is 50^2= u^2- 2*10*5 u= 51 m/s time taken to reach 5m =0.1 s so total time of flight = 10.2

An object thrown vertically up from the ground passes the height 5m twice in an interval of 10 sec. What is the timeof flight ?

Pls explain with diagram sir

Motion

Asked by Tanushree, 4 years ago

( 3 Answers ) Gurpreet 4 years ago

The object passes height 5 m twice in an interval of 10 sec .

So it took 5 s for reaching heighest point of flight.

velocity at 5 m height is

0= v- gt 0=v-10*5 v=50

so speed at start is

50^2= u^2- 2*10*5 u= 51 m/s

time taken to reach 5m =0.1 s

so total time of flight = 10.2

Sahil 4 years ago 10.19 second

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## An object thrown vertically up from the ground passes the height 5 m twice in an interval of 10 s . What is its time of flight?

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Question

## An object thrown vertically up from the ground passes the height 5 m twice in an interval of 10 s. What is its time of flight?

A

28 ​ s

B

86 ​ s

C

104 ​ s

D

72 ​ s Medium Open in App

Updated on : 2022-09-05

Solution Verified by Toppr

Correct option is C)

The object has flight height (s−5) m in

2 10 ​ s= 5s

The object is descending at the same time= 5s

Using, s=ut+ 2 1 ​ at 2 s−5=0×5+ 2 1 ​ ×9.8×5 2 s=127.5 m

Time taken to travel vertically 127.5 m,

=>127.5=0×t+ 2 1 ​ ×9.8×t 2 t 2 =26.02s t= 5.1 s

Therefore total time of flight is= 2×5.1 = 10.2s

104 ​ s

Solve any question of Motion in a Straight Line with:-

Patterns of problems

>

109 39

स्रोत : www.toppr.com

## An object thrown verticallly up from the ground passes the height 5 m twice in an interval of 10 s. What is its time of flight?

An object thrown verticallly up from the ground passes the height 5 m twice in an interval of 10 s. What is its time of flight?

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Motion In A Straight Line

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An object thrown verticallly u...

An object thrown verticallly up from the ground passes the height 5 m twice in an interval of 10 s. What is its time of flight?

Updated On: 27-06-2022

Text Solution Open Answer in App A 28 − − √ s 28s B 86 − − √ s 86s C 104 − − − √ s 104s D 72 − − √ s 72s Answer

Step by step solution by experts to help you in doubt clearance & scoring excellent marks in exams.

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